CN116557984A - Heat exchanger with dehumidification device and dehumidification device - Google Patents

Abstract

The invention relates to the technical field of dehumidification equipment, in particular to a heat exchanger of a dehumidification processing device, which comprises a top cover, a water receiving disc and a plurality of heat exchange tubes, wherein the top cover and the water receiving disc are provided with air guide cavities, and the water receiving disc is provided with a water outlet; the plurality of heat exchange tubes are arranged between the top cover and the water receiving disc, the heat exchange tubes are communicated with the outside through the air guide cavity, gaps among the heat exchange tubes form a cold air duct, and air in the cold air duct is suitable for heat exchange with air in the heat exchange tubes during dehumidification operation; the top cover is provided with a water cavity and a flow guide component, and the flow guide component is suitable for guiding water in the water cavity to the outer surface of the heat exchange tube during humidifying operation so as to form a wet curtain positioned in the cold air duct on the outer surface of the heat exchange tube. The heat exchanger disclosed by the invention has the advantages that the humidifying work and the dehumidifying work can share one set of device, the structural design is compact, the occupied area is small, the work requirements of humidifying and dehumidifying can be met at the same time, the functions of the dehumidifying processing device formed by assembling the heat exchanger are more comprehensive, and the use frequency of equipment can be improved in a large range.

Description

Heat exchanger with dehumidification treatment unit and dehumidification treatment unit

technical field

The invention relates to the technical field of humidification and dehumidification equipment, in particular to a heat exchanger of a humidification and dehumidification treatment device and a dehumidification and dehumidification treatment device.

Background technique

In the air treatment device, humidification and dehumidification are common means of air treatment. Among them, for the dehumidification process, the conventional means adopt the form of hygroscopic agent adsorption. By placing the hygroscopic agent in the dehumidification device, the passing air is physically adsorbed. Dehumidification treatment, such as a rotary dehumidifier, uses a slow-rotating honeycomb moisture-absorbing rotor coated with a hygroscopic agent on the surface to absorb water vapor in the ambient air, and heats the moisture-absorbing rotor at high temperature to dehydrate the moisture absorbent Regeneration, in order to achieve the purpose of continuous dehumidification equipment. For the humidification process, water is usually atomized, and the atomized water vapor increases the water vapor content in the air to achieve the purpose of humidification.

Most of the dehumidification equipment on the market only has the function of dehumidification and cannot achieve humidity adjustment. Users only use it when the humidity is high or when drying clothes, and the frequency of use of the product is low. If it is necessary to increase the humidification function, the conventional method is to add another set of separate humidification equipment, but in this way, it is easy to cause the size of the whole equipment to be too large, which will affect the use.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the related art. For this reason, the present invention proposes a heat exchanger for adding a dehumidification treatment device. Through the structural design, it can meet the working requirements of the air treatment equipment in the humidification mode and the dehumidification mode at the same time. The humidification work and the dehumidification work can share a set of devices. The structure The design is compact, the floor space is small, and the function of the humidification and dehumidification treatment device formed is more comprehensive, which can increase the frequency of use of the equipment in a large range.

The present invention also proposes a dehumidification treatment device, which includes the above-mentioned heat exchanger, and adds a humidification function to the dehumidification equipment. In addition to ensuring the dehumidification effect of the equipment, it can also perform humidity adjustment, so that the equipment has both dehumidification and humidification functions at the same time. The structure is compact, the floor space is small, and the functions are more comprehensive in a limited space, which can greatly increase the frequency of use of the equipment.

According to a heat exchanger of a dehumidification treatment device according to an embodiment of the first aspect of the present invention, the heat exchanger includes a top cover, a water receiving tray and a plurality of heat exchange tubes,

Both the top cover and the water receiving tray are provided with an air guide cavity, and the water receiving tray is provided with a drain port;

The plurality of heat exchange tubes are installed between the top cover and the water receiving tray, and the heat exchanger includes;

A top cover and a water receiving tray, the top cover and the water receiving tray are both provided with an air guide cavity, and the water receiving tray is provided with a drain port;

The heat exchange tube is installed between the top cover and the water receiving tray, the heat exchange tube communicates with the outside through the air guide cavity, and the space outside the wall of the heat exchange tube is formed with a cold air duct, The air in the cold air duct is suitable for exchanging heat with the air in the heat exchange tube in the dehumidification mode of the air handling equipment;

The top cover is provided with a water cavity, and the water in the water cavity is suitable for humidifying the air in the cold air duct in the humidification mode of the air treatment device.

According to the embodiment of the present invention, the humidification and dehumidification treatment device can meet the working requirements of the air treatment equipment in the humidification mode and the dehumidification mode at the same time through the structural design. The humidification work and the dehumidification work can share a set of devices, and the structural design is compact and the floor space is small. Small, the formed dehumidification treatment device has more comprehensive functions, and can increase the frequency of use of equipment in a large range.

According to an embodiment of the present invention, the area of the top cover is smaller than the area of the water receiving tray, and the projection of the top cover on the water receiving tray all falls on the water receiving tray. In the humidification mode of the device, the water in the water chamber flows through the edge of the water chamber and falls into the water receiving tray, and forms a water curtain between the top cover and the water receiving tray.

According to an embodiment of the present invention, the top cover is further provided with a flow guide part, and the flow guide part is suitable for guiding the water in the water chamber to the outside of the heat exchange tube in the humidification mode of the air handling device. surface, so as to form a wet curtain located in the cold air duct on the outer surface of the heat exchange tube.

According to an embodiment of the present invention, the water chamber is formed on the upper surface of the top cover, the top cover is provided with a cold air outlet of the cold air duct, and the edge of the cold air outlet protrudes toward the water chamber To form a shroud, the shroud is provided with a gap communicating with the water cavity.

According to an embodiment of the present invention, the air guide member includes air guide ribs, the air guide ribs pass through the gap and the cold air outlet, and the air guide ribs are directed from the water cavity to the heat exchange tubes surface extension.

According to an embodiment of the present invention, the top cover is a circular cover, the cold air outlet includes arc-shaped air outlet holes, the air outlet holes are distributed around the central axis of the top cover, and the air outlet holes are connected to There are multiple guide ribs, and the guide ribs correspond to the heat exchange tubes one by one.

According to an embodiment of the present invention, the bottom of the top cover is provided with a first installation port for assembling the first end of the heat exchange tube, and the first installation port and the cold air outlet are dislocated;

and / or,

Both the cold air outlet and the heat exchange tubes include multiple layers, which are alternately distributed outward along the central axis of the top cover. In the humidification mode of the air handling device, the water in the water chamber flows through the cold air outlet. Through the wall of the heat exchange tube, it flows to the water receiving tray to form a multi-layer wet curtain.

According to an embodiment of the present invention, the top cover is provided with a hot air inlet and a hot air outlet, and the air guide chamber includes an air inlet chamber, an air outlet chamber and a transition chamber, and the air inlet chamber and the air outlet chamber are arranged on The top cover, the transition chamber is arranged on the water receiving tray, the heat exchange pipe includes an air inlet pipe and an air outlet pipe, the first end of the air inlet pipe communicates with the air inlet chamber, and the outlet pipe The first end of the air pipe communicates with the air outlet chamber, and the second end of the air inlet pipe communicates with the second end of the air outlet pipe through the transition chamber.

According to an embodiment of the present invention, the air inlet chamber includes a plurality of air inlet passages communicating with the hot air inlet, the plurality of air inlet passages are arranged in parallel, each of the air inlet passages communicates with a plurality of The air inlet pipe; the air outlet chamber includes a plurality of air outlet passages communicating with the hot air outlet, a plurality of the air outlet passages are arranged in parallel, and each of the air outlet passages is correspondingly connected to a plurality of the outlet air passages. pipe; the air inlet channels, the air outlet channels are distributed alternately with the air outlet holes.

According to an embodiment of the present invention, the heat exchange tubes are distributed in an array, and the space between the tube walls of the outermost adjacent heat exchange tubes forms the cold air inlet of the cold air channel.

According to an embodiment of the present invention, the top cover includes a first cover body and a second cover body that cooperate with each other; the second cover body is provided with a first installation port for assembling the first end of the heat exchange tube, Part of the air guide cavity is formed between the first cover and the second cover.

According to an embodiment of the present invention, the first cover forms the water cavity, and the first cover is provided with a water injection channel communicating with the water cavity.

According to an embodiment of the present invention, the water receiving tray includes a first tray body and a second tray body that cooperate with each other, a part of the air guiding cavity is formed between the first tray body and the second tray body, The first tray is provided with a second installation port for assembling the second end of the heat exchange tube.

According to an embodiment of the present invention, the first tray forms a water receiving tank and a drainage channel communicating with the water receiving tank; the second tray is provided with the drainage port.

According to the embodiment of the second aspect of the present invention, a dehumidification processing device includes a casing, the casing is provided with an air inlet and an air outlet, and the casing is installed with:

The heat exchanger of the embodiment of the first aspect above;

Dehumidification wheel, including adsorption zone and regeneration zone;

A heater, located on the side of the dehumidification wheel facing away from the heat exchanger; suitable for heating the airflow passing through the heater and then flowing to the regeneration zone;

A conveying fan, adapted to convey the airflow from the air inlet through the cold air duct of the heat exchanger, then convey it through the adsorption area of the dehumidification wheel, and then flow out from the air outlet;

A circulation fan is adapted to deliver the air flowing through the regeneration zone to the circulation fan after passing through the heat exchange tubes of the heat exchanger.

According to an embodiment of the present invention, the dehumidification treatment device includes a dehumidification mode and a humidification mode;

In the dehumidification mode, the airflow of the conveying fan passes through the dehumidification rotor for dehumidification operation, and at the same time, the heater and the circulation fan work to regenerate the dehumidification rotor;

In the humidification mode, the heater and the circulation fan do not work, and the airflow of the delivery fan performs humidification when it flows through the cold air channel of the heat exchanger.

According to an embodiment of the present invention, a water tank is also provided in the casing, and the heat exchange condensed water in the dehumidification mode and the circulating humidification water in the humidification mode are both connected to the water tank through the water receiving tray For recovery, the water tank communicates with the water cavity on the top cover through a water pump.

The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

Through the structural improvement, the humidification function is added to the dehumidification equipment. In addition to ensuring the dehumidification effect of the equipment, the humidity can also be adjusted, so that the equipment has both dehumidification and humidification functions. The whole machine has a compact structure and a small footprint. In order to achieve more comprehensive functions, it can greatly increase the frequency of use of equipment.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following will briefly introduce the drawings that need to be used in the descriptions of the embodiments or related technologies. Obviously, the drawings in the following description are only For some embodiments of the invention, those skilled in the art can also obtain other drawings based on these drawings without creative effort.

Fig. 1 is a schematic structural view of a heat exchanger of a dehumidification treatment device provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of part A of Fig. 1 provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of the structure and assembly relationship of the heat exchanger of the dehumidification treatment device provided by the embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a first cover provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a second cover provided by an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a first tray provided by an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a second tray provided by an embodiment of the present invention;

Fig. 8 is a schematic diagram of the structural assembly relationship of the adding and dehumidifying treatment device provided by the embodiment of the present invention;

Fig. 9 is an external schematic diagram of the whole machine of the adding and dehumidifying treatment device provided by the embodiment of the present invention;

Fig. 10 is a dehumidification principle diagram of the dehumidification processing device provided by the embodiment of the present invention.

Reference signs:

1: top cover; 101: water cavity; 102: diversion member; 1021: diversion rib; 103: hot air inlet; 104: hot air outlet; 11: first cover; 111: water injection channel; 12: second cover ;121: the first installation port;

2: Water receiving tray; 201: Drain outlet; 21: First tray body; 211: Second installation port; 212: Water receiving tank; 213: Drainage channel; 22: Second tray body;

3: air guiding chamber; 301: air inlet chamber; 3011: air inlet channel; 302: air outlet chamber; 3021: air outlet channel; 303: transition chamber;

4: heat exchange pipe; 401: air inlet pipe; 402: air outlet pipe;

5: cold air duct; 501: cold air outlet; 5011: air outlet; 502: enclosure; 503: gap; 504: cold air inlet;

6: Case; 601: Air inlet; 602: Air outlet; 603: Top plate; 604: Support assembly; 605: Mounting plate of runner assembly; 606: Base; 607: Door assembly; 608: Side plate; 609: Water tank ; 610: filter assembly; 61: heat exchanger; 62: dehumidification runner; 621: adsorption area; 622: regeneration area; 63: heater; 64: delivery fan; 65: circulation fan.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, Or integrated connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention in specific situations.

In the embodiments of the present invention, unless otherwise specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature may pass through the middle of the second feature. Media indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

According to the embodiment of the first aspect of the present invention, a heat exchanger 61 of a dehumidification treatment device, please refer to Fig. 1 and Fig. 3, the heat exchanger 61 includes a top cover 1, a water receiving tray 2 and a heat exchange tube 4, the top cover 1 and the water tray 2 are both provided with an air guide chamber 3, and the water tray 2 is provided with a drain port 201; the heat exchange tube 4 is installed between the top cover 1 and the water tray 2, and the heat exchange tube 4 passes through the air guide chamber 3 Connected with the outside, the space outside the wall of the heat exchange tube 4 is formed with a cold air duct 5, and the air in the cold air duct 5 is suitable for heat exchange with the air in the heat exchange tube 4 under the dehumidification mode of the air handling equipment; the top cover 1 is provided with a water cavity 101, and the water in the water cavity 101 is suitable for humidifying the air in the cold air duct 5 in the humidification mode of the air treatment equipment.

It can be understood that the structural design of the heat exchanger 61 constitutes two channels of the heat exchanger 61, one is the external channel of the heat exchanger 61, that is, the cold air channel 5 formed by the space outside the wall of the heat exchange tube 4, The other is the internal channel of the heat exchanger 61 , that is, the heat exchange channel formed by the connection between the top cover 1 , the air guide cavity 3 inside the water receiving tray 2 and a plurality of heat exchange tubes 4 .

The inner channel of the heat exchanger 61 is used for the dehumidification operation process. After the circulating hot and humid gas regenerates the dehumidification wheel 62 , it condenses in the inner channel of the heat exchanger 61 . The external channels of the heat exchanger 61 are used for the circulation of the air to be treated during the dehumidification operation and the humidification operation. During the dehumidification operation and the humidification operation, the difference between the external channels of the heat exchanger 61 is that during the humidification operation, the water in the water chamber 101 is guided to the outer surface of the heat exchange tube 4 to form a cold air channel 5 on the outer surface of the heat exchange tube 4 . The wet curtain in the water chamber 101, or the water in the water chamber 101 flows directly from the edge of the water chamber 101 to the water receiving tray, so that a water curtain is formed between the top cover 1 and the water receiving tray 2, whether it is a wet curtain or a water curtain, can be used for Humidify the air flowing through the cold air duct 5; and during the dehumidification operation, the water in the water chamber 101 is not used for humidification, the cold air duct 5 is in a dry state, and the air flowing through the cold air duct 5 directly enters the next step of dehumidification.

Specifically, this embodiment provides a humidification process under the humidification mode. In this embodiment, the area of the top cover 1 is smaller than the area of the water receiving tray 2, and the projection of the top cover 1 on the water receiving tray 2 all falls on On the water tray 2, that is, the projected area of the water tray 2 in the axial direction is larger than the projected area of the top cover 1 in the axial direction, and the water flowing down from the top cover 1 can be taken over by the water tray 2. Next, the water in the water chamber 101 flows through the edge of the water chamber 101 and continues downward along the edge of the top cover 1 until it falls into the water receiving tray 2 to form a water curtain between the top cover 1 and the water receiving tray 2 . Before the air to be humidified enters the cold air duct 5 outside the tube wall of the heat exchange tube 4, it must first pass through the water curtain, and the air passing through the water curtain will take part of the water vapor to form a humidification effect.

Another embodiment of the humidification process in the humidification mode. In this embodiment, the top cover 1 is also provided with a flow guide part 102, and the flow guide part 102 is adapted to transfer the water in the water chamber 101 to The water guides the outer surface of the heat exchange tube 4 to form a wet curtain in the cold air channel 5 on the outer surface of the heat exchange tube 4 . During the humidification process, there is water for humidification in the water chamber 101, and the flow guide member 102 guides the water in the water chamber 101 to the outer surface of the heat exchange tube 4. A water film is formed. When the air to be humidified passes through the cold air duct 5, the water film evaporates to form water vapor. At this time, the heat exchange tube 4 acts as a wet curtain, so that the air to be humidified flowing through the cold air duct 5 can be humidified.

During the dehumidification process, there is no water in the water chamber 101. After the dehumidified air flows through the cold air duct 5, it enters the dehumidification wheel 62 for dehumidification to obtain dry air. The dehumidification wheel 62 needs to be regenerated after the dehumidification operation. In the dehumidification processing device mentioned later, the heated air is blown through the regeneration area 622 of the dehumidification wheel 62 so that part of the area of the dehumidification wheel 62 has the dehumidification function again, and the hot air for the regeneration process must return to this embodiment Condensation is carried out in the structure of the heat exchanger 61. Specifically, after the hot air enters the heat exchanger 61, heat exchange is performed in the heat exchange channel formed by the connection between the air guide cavity 3 inside the top cover 1 and the water tray 2 and the heat exchange tube 4 Condensation, the condensed water is discharged from the drain port 201.

The heat exchanger 61 of the humidification and dehumidification treatment device provided in this embodiment can meet the working requirements of the air treatment equipment in the humidification mode and the dehumidification mode at the same time through the structural design. The humidification work and the dehumidification work can share a set of devices. The design is compact, the floor space is small, and the function of the humidification and dehumidification treatment device formed is more comprehensive, which can increase the frequency of use of the equipment in a large range.

In view of the specific role of the heat exchanger 61 in the humidification process, this embodiment further discusses the specific structure of the heat exchanger 61 in the humidification process "the flow guide member 102 guides the water in the water chamber 101 to the outer surface of the heat exchange tube 4". 1 and 2, in this embodiment, the water cavity 101 is formed on the upper surface of the top cover 1, the top cover 1 is provided with a cold air outlet 501 of the cold air duct 5, and the edge of the cold air outlet 501 faces the water. The cavity 101 protrudes to form a coaming plate 502, the coaming plate 502 is provided with a gap 503 communicating with the water cavity 101, the flow guide member 102 includes a flow guide rib 1021, the flow guide rib 1021 passes through the gap 503 and the cold air outlet 501, and the flow guide rib 1021 Extend from the water chamber 101 toward the surface of the heat exchange tube 4 .

Among them, the water cavity 101 is used to store the water used for humidification, and the shroud 502 can prevent the water from flowing into the cold air duct 5 excessively. To divert the water in the humidification process, it needs to be realized by the diversion rib 1021, because the diversion rib 1021 is from The water cavity 101 extends toward the surface of the heat exchange tube 4, so the water in the water cavity 101 enters the cold air duct 5 from the gap 503 through the surrounding plate 502 along the extension direction of the flow guide rib 1021, and the water has a certain adhesion force. In the cold air duct 5, it will also flow along the guide ribs 1021, and then flow to the surface of the heat exchange tube 4, forming a water film on the surface of the heat exchange tube 4. At this time, the heat exchange tube 4 has the function of a wet curtain , when air flows through, the water film evaporates to form water vapor, which humidifies the air.

An embodiment of the present invention, please refer to Fig. 4 and Fig. 5, the top cover 1 is a circular cover, the cold air outlet 501 includes a plurality of arc-shaped air outlet holes 5011, and the plurality of air outlet holes 5011 surround the top cover 1 The central axis of the air outlet is coaxially distributed, and all the air outlet holes 5011 are connected with a plurality of flow guide ribs 1021, and the flow guide ribs 1021 correspond to the heat exchange tubes 4 one by one.

The top cover 1 with a circular cover structure has a plurality of arc-shaped air outlet holes 5011 distributed around the central axis of the top cover 1. In this structure, the connection between the heat exchange tube 4 and the top cover 1 can only The gap position between the arc-shaped air outlet holes 5011, because the plurality of air outlet holes 5011 are coaxially distributed around the central axis of the top cover 1, thus indirectly ensuring that the heat exchange tubes 4 are also arranged corresponding to the arc-shaped air outlet holes Therefore, orderly distribution of the heat exchange tubes 4 can be ensured. All the air outlet holes 5011 are connected with a plurality of flow guide ribs 1021, and the flow guide ribs 1021 correspond to the heat exchange tubes 4 one by one, that is, the water discharged from the water chamber 101 will flow downstream to the corresponding heat exchange tubes 4 Above all, the precise flow direction of the water flow can make the surface of all the heat exchange tubes 4 form a wet curtain, which speeds up the formation of the water film on the outer surface of the heat exchange tube 4, improves the humidification efficiency, and ensures the humidification effect.

It can be understood that, in the structure of the above embodiment, the top cover 1 is a circular cover structure, but it is not limited to the circular cover structure, and the top cover 1 can also be in other shapes. Correspondingly, the structure of the cold air outlet 501 is not only It is limited to the arc-shaped structure coaxially distributed around the central axis of the top cover 1 , and other structures and distribution methods can also be present, as long as the flow guide ribs 1021 can guide water to the heat exchange tubes 4 . As for the diversion effect of the diversion ribs 1021, it is not necessary that all the heat exchange tubes 4 correspond to the diversion ribs 1021. Obviously, if the diversion ribs 1021 guide the water in the water cavity 101 to only part of the heat exchange tubes 4, it is also possible. A humidification effect is achieved to a certain extent, for example, only forming a wet curtain on the outer surface of the outermost heat exchange tube 4 can also have a humidification effect. The above embodiment provides a specific implementation structure, but is not limited to this implementation structure.

Under the above-mentioned structure of "distributing a plurality of arc-shaped air outlet holes 5011 around the central axis of the top cover 1", in this embodiment, the bottom of the top cover 1 is provided with a first installation port for assembling the first end of the heat exchange tube 4 121, the first installation port 121 and the cold air outlet 501 are misplaced; and/or, the cold air outlet 501 and the heat exchange tube 4 include multiple layers, which are alternately distributed outward along the central axis of the top cover 1, and the first installation port 121 and the cold air The dislocation arrangement of the outlets 501 can also form the cold air outlets 501 and the heat exchange tubes 4 to be alternately distributed outwards along the central axis of the top cover 1, so that as the water in the water chamber 101 flows through the cold air outlets 501 through the heat exchange tubes 4 wall, flows to the water receiving tray 2 to form a wet curtain, and finally forms a multi-layer wet curtain in the cold air duct 5. In the humidification mode of the air handling equipment, the air to be humidified can be multi- Humidification for the second time, better humidification effect.

In one embodiment of the present invention, as shown in Fig. 3, Fig. 4 and Fig. 5, a hot air inlet 103 and a hot air outlet 104 are arranged on the top cover 1, and the air guide chamber 3 includes an air inlet chamber 301, an air outlet chamber 302 and a transition The chamber 303 (refer to FIG. 7 ), the air inlet chamber 301 and the air outlet chamber 302 are arranged on the top cover 1 . Please refer to Fig. 6 and Fig. 7, the transition chamber 303 is arranged on the water receiving tray 2, the heat exchange pipe 4 includes an air inlet pipe 401 and an air outlet pipe 402, the first end of the air inlet pipe 401 communicates with the air inlet chamber 301, and the air outlet pipe The first end of 402 communicates with the air outlet chamber 302 , and the second end of the air inlet pipe 401 and the second end of the air outlet pipe 402 communicate through the transition chamber 303 .

The air inlet cavity 301, the air outlet cavity 302 and the transition cavity 303 constitute a passage for hot and humid air to condense inside the heat exchanger 61. The hot and humid air enters through the hot air inlet 103 and passes through the air inlet cavity 301, the air inlet pipe 401, and the transition chamber in sequence. Cavity 303 , air outlet pipe 402 and air outlet chamber 302 , and finally the hot air outlet 104 discharges dry air. During the dehumidification process using the heat exchanger 61, hot and humid air enters from the hot air inlet 103 of the top cover 1, first enters the air inlet cavity 301 of the top cover 1, and then enters the air inlet pipe 401 for the first heat exchange and condensation, and then The air after the first heat exchange and condensation in the air inlet pipe 401 enters the transition chamber 303 of the water receiving tray 2, the condensed water after the heat exchange and condensation stays in the water receiving tray 2, and the air flows from the transition chamber 303 of the water receiving tray 2 Enter the air outlet pipe 402 for the second heat exchange and condensation, the condensed water after the second heat exchange and condensation flows back to the transition chamber 303 of the water tray 2, and the air after the second heat exchange and condensation enters the top cover 1 The air outlet cavity 302 of the top cover 1 discharges dry air from the hot air outlet 104 . From the structure of this embodiment, it can be seen that in the structure of the heat exchanger 61, the function of the top cover 1 is highly integrated, not only can form a wet curtain on the heat exchange tube 4 through the cold air outlet 501 of the top cover 1, but also can form a wet curtain on the top cover 1. The cover 1 leads into hot and humid air and discharges dry air. From the point of view of the overall equipment, the overall structure can be simplified, the cost can be reduced, and the volume of the entire equipment can be controlled by using highly integrated single equipment parts.

It can be understood that the air guiding chamber 3 may include the air inlet chamber 301 , the air outlet chamber 302 and the transition chamber 303 at the same time, or may only include the air inlet chamber 301 and the air outlet chamber 302 . Corresponding to the situation that the air guide chamber 3 only includes the air inlet chamber 301 and the air outlet chamber 302 , one of the air inlet chamber 301 and the air outlet chamber 302 is arranged on the top cover 1 , and the other one is arranged on the water receiving tray 2 . When the air guide chamber 3 includes the air inlet chamber 301, the air outlet chamber 302 and the transition chamber 303 at the same time, the distribution of the air inlet chamber 301, the air outlet chamber 302 and the transition chamber 303 is not limited to the above example, the setting positions of the three It can be changed, as long as it can ensure that the air inlet pipe 401 and the air outlet pipe 402 can be conducted through the transition chamber 303, the air inlet pipe 401 is conducted through the air inlet chamber 301 and the outside, and the air outlet pipe 402 is passed through the outlet chamber 302 and the outside. Conduction is enough, as for the air inlet cavity 301 , the air outlet cavity 302 and the transition cavity 303 are specifically arranged on the top cover 1 or the water tray 2 , there is no limitation, and all of them can meet the implementation purpose.

An embodiment of the present invention, please refer to Fig. 5, the air inlet chamber 301 includes a plurality of air inlet passages 3011 communicating with the hot air inlet 103, the plurality of air inlet passages 3011 are arranged in parallel, and each air inlet passage 3011 communicates with multiple The air inlet pipe 401; the air outlet chamber 302 includes a plurality of air outlet passages 3021 communicating with the hot air outlet 104, and the plurality of air outlet passages 3021 are arranged in parallel, and each air outlet passage 3021 is correspondingly connected with a plurality of air outlet pipes 402; The channels 3011 and the air outlet channels 3021 are distributed alternately with the air outlet holes 5011 . The air inlet chamber 301 and the air outlet chamber 302 are arranged alternately in the form of parallel channels. If they are not alternately distributed, the structures of the air inlet chamber 301 and the air outlet chamber 302 can be simpler. Wherein, the alternate distribution can improve the heat exchange effect of the heat exchanger 61 in the dehumidification mode and ensure sufficient condensation.

The multiple air inlet channels 3011 in parallel and the multiple air outlet channels 3021 in parallel can make the air flow more uniform, and can ensure the heat exchange effect and heat exchange efficiency, wherein each air inlet channel 3011 is correspondingly connected with multiple air inlet pipes 401 , each air outlet channel 3021 is correspondingly connected to a plurality of air outlet pipes 402, thereby ensuring that as many heat exchange tubes 4 as possible can be distributed. The air inlet channel 3011 and the air outlet channel 3021 are alternately distributed with the air outlet holes 5011. The alternate distribution can improve the heat exchange effect of the heat exchanger 61 in the dehumidification mode and ensure sufficient condensation; it can also improve the humidification efficiency in the humidification mode and ensure the formed The wet curtain is faster and more even.

It can be understood that, because of the alternate distribution, the air inlet chamber 301 and the air outlet chamber 302 should be arranged in the form of parallel channels. If they are not alternately distributed, the structures of the air inlet chamber 301 and the air outlet chamber 302 can be simpler, for example Two simple cavities as the air inlet chamber 301 and the air outlet chamber 302 can also play a corresponding role, but the structural effect is not as good as that of this embodiment.

In the distribution of the above-mentioned air inlet passages 3011 and air outlet passages 3021, the top cover 1 can be a circular cover, the air inlet passages 3011 and the air outlet passages 3021 can be arc-shaped, and all the air inlet passages 3011 and the air outlet passages 3021 are coaxially distributed around the central axis of the top cover 1 , that is, the central axis of the air inlet channel 3011 is the central axis of the top cover 1 , and the central axis of the air outlet channel 3021 is also the central axis of the top cover 1 . The distribution of arc-shaped air ducts (unless specified, the air duct refers to at least one of the air inlet channel 3011 and the air outlet channel 3021 ) is beneficial to reduce the resistance of the airflow.

In this embodiment, the air inlet channel 3011 communicates with the air outlet channel 3021 through the transition cavity 303 in one-to-one correspondence. At this time, the air flow is smoother, which can ensure the air flow coming in from the hot air inlet 103 and the air flow going out from the hot air outlet 104. The same or close to the airflow can quickly pass through the heat exchanger 61, without airflow accumulation or airflow gaps inside the heat exchanger 61, improving heat exchange efficiency. Of course, the air inlet channel 3011 and the air outlet channel 3021 can also adopt other setting situations other than one-to-one correspondence setting.

In one embodiment of the present invention, referring to FIG. 1 and FIG. 3 , the heat exchange tubes 4 are distributed in an array, and the space between the tube walls of the outermost adjacent heat exchange tubes 4 forms the cold air inlet 504 of the cold air duct 5 . The heat exchange tubes 4 distributed in an array can make the cold air inlets 504 evenly distributed, and then form a uniform air intake of the cold air duct 5 of the heat exchanger 61 . The further orderly distribution of the heat exchange tubes 4 ensures the uniformity of humidification in the humidification mode and better dehumidification efficiency in the dehumidification mode.

An embodiment of the present invention, please refer to Fig. 3, the top cover 1 includes a first cover 11 and a second cover 12 that cooperate with each other, the first cover 11 forms a water cavity 101, and the first cover 11 is provided with a communicating The water injection channel 111 of the water chamber 101; the second cover 12 is provided with a first installation port 121 for assembling the first end of the heat exchange tube 4, and a part of the air guide cavity 3 is formed between the first cover 11 and the second cover 12 . The water receiving tray 2 includes a first tray body 21 and a second tray body 22 that cooperate with each other, a part of the air guide cavity 3 is formed between the first tray body 21 and the second tray body 22, and the first tray body 21 is provided with a There is a second installation opening 211 at the second end of the heat pipe 4 , and the first tray 21 forms a water receiving tank 212 and a drainage channel 213 communicating with the water receiving tank 212 ; the second tray 22 is provided with a drain outlet 201 .

The first cover 11 and the second cover 12 are easy to process, and the first cover 11 and the second cover 12 can be detachably connected, of course, can also be integrally connected. Likewise, the space between the first tray 21 and the second tray 22 is similar to that between the first cover 11 and the second cover 12 . The first installation port 121 and the second installation port 211 are used to connect and install the heat exchange tube 4, which facilitates the assembly of the heat exchange tube 4. The heat exchange tube 4, the top cover 1 and the water tray 2 can all be detachably connected. Furthermore, during the use of the heat exchanger 61, the length and quantity of the heat exchange tubes 4 can be adjusted as required, thereby changing the heat exchange and condensation effect of the heat exchanger 61, and the overall versatility of the whole machine is better. The heat exchange tube 4 can be an aluminum tube or a plastic tube or other tubes suitable for heat exchange. In order to ensure better heat exchange efficiency, the heat exchange tube 4 can be an aluminum tube with higher heat exchange efficiency.

In this embodiment, except for the inner channel of the heat exchanger 61 formed by the air guide chamber 3 and the heat exchange tube 4 for condensation heat exchange. The main structure is to optimize the working process in the humidification mode in detail. The upper surface edge of the first cover 11 is provided with enclosures, a water chamber 101 is formed on the first cover 11, and a communication channel is provided on the edge enclosure of the first cover 11. The water injection channel 111 of the water chamber 101; the edge of the upper surface of the first disc body 21 is provided with a fence, and a water receiving groove 212 is formed on the upper surface of the first disk body 21, and a water connection groove 212 is provided on the edge of the first disk body 21. The drain channel 213 , the second tray body 22 is provided with the drain port 201 .

During the humidification process, water is injected into the water cavity 101 on the upper surface of the first cover 11 through the water injection channel 111, so that there is always water in the water cavity 101, and the water in the water cavity 101 will flow from the cold air channel along the flow guide member 102. 5 flows downward, the water has a certain adhesion force, and will flow to the heat exchange tube 4 along the flow guide part 102, and has a certain adhesion force to cover the heat exchange tube 4, forming a water film on the outer surface of the heat exchange tube 4 , when the air to be humidified forms a wind and blows, the water film evaporates to form water vapor. At this time, the heat exchange tube 4 acts as a wet curtain, so that the process air flowing through the cold air duct 5 is humidified. The unevaporated water on the heat exchange tubes 4 flows into the upper surface of the first tray 21 under the action of gravity, and then is discharged into the water tank 609 through the drainage channel 213 .

It can be understood that both the water injection channel 111 and the drainage channel 213 are connected to the water tank 609 to form a circulation. This water tank 609 is also the water tank 609 that is connected to the condensed water outlet 201 and discharged into it during the dehumidification process. The humidification and dehumidification share the water tank 609, and the structure of the whole machine is more compact. , and can also save water resources, so that the water resources in the dehumidification system can be recycled.

The embodiment of the second aspect of the present invention proposes a dehumidification treatment device, including the above-mentioned heat exchanger 61, which is equivalent to adding a humidification function to the dehumidification equipment. In addition to ensuring the dehumidification effect of the equipment, it can also perform humidity adjustment, so that the equipment has both The function of dehumidification and humidification, the whole machine has a compact structure and a small footprint. In a limited space, the functions are more comprehensive, and the frequency of use of the equipment can be greatly improved.

A dehumidification treatment device according to the embodiment of the second aspect of the present invention, as shown in Fig. 8 and Fig. 9, includes a casing 6, which is provided with an air inlet 601 and an air outlet 602, and the casing 6 is equipped with: Heater 61, dehumidification runner 62, heater 63, conveying fan 64 and circulation fan 65, wherein, referring to Fig. 10, dehumidification runner 62 comprises adsorption zone 621 and regeneration zone 622; Heater 63 is positioned at dehumidification runner 62 back To the side of the heat exchanger 61; it is suitable for heating the air flow passing through the heater 63 and then flowing to the regeneration zone 622; the delivery fan 64 is suitable for delivering the air flow from the air inlet 601 to the cold air duct 5 flowing through the heat exchanger 61 , and then flow through the adsorption zone 621 of the dehumidification wheel 62 and then flow out from the air outlet 602; the circulation fan 65 is suitable for transporting the airflow flowing through the regeneration zone 622 to flow through the heat exchange tube 4 of the heat exchanger 61 and then flow to the circulation fan 65 .

It can be understood that in this embodiment, the heat exchanger 61, the dehumidification wheel 62 and the heater 63 cooperate to realize the dehumidification function of the dehumidification treatment device, and the heat exchanger 61 is designed to realize the humidification function of the dehumidification treatment device, and the humidification Some components (such as heat exchanger 61 and conveying fan 64) are shared under the mode and the dehumidification mode, while the humidification mode and the dehumidification mode work relatively independently without affecting each other.

The dehumidification processing device includes a dehumidification mode and a humidification mode. In the dehumidification mode, the airflow of the conveying fan 64 passes through the dehumidification runner 62 for dehumidification operation. At the same time, the heater 63 and the circulation fan 65 work to regenerate the dehumidification runner 62; In the humidification mode, the heater 63 and the circulation fan 65 do not work, and the airflow of the delivery fan 64 performs humidification when flowing through the cold air duct 5 of the heat exchanger 61 .

The structure of a specific embodiment of the dehumidification treatment device is provided. The side of the casing 6 is provided with an air inlet 601 , and the top of the casing 6 is provided with an air outlet 602 . Please refer to Fig. 8, the dehumidification runner 62 is arranged horizontally, and the dehumidification runner 62 is installed above the top cover 1; the cabinet 6 includes a top plate 603, a support assembly 604, a runner assembly mounting plate 605, and an air inlet enclosure from top to bottom Parts and a base 606, the air intake enclosure includes door assemblies 607 on both sides and side panels 608 on the front and rear sides, the door assemblies 607 and side panels 608 are provided with air intake grilles to form air inlets 601 for air intake. A water tank 609 is installed on the base 606, a heat exchanger 61 is arranged on the water tank 609, and the heat exchanger 61 is surrounded by an air inlet enclosure, and a filter assembly 610 is arranged between the air inlet enclosure and the heat exchanger 61, and the heat exchanger 61 The top of the dehumidification runner 62, the top of the dehumidification runner 62 is the heater 63 and the circulation fan 65, the dehumidification runner 62, the heater 63 and the delivery fan 64 are installed on the runner assembly mounting plate 605, the heater 63 and the circulation fan Above 65 is the conveying fan 64, which is fixed to the support assembly 604, and the upper part of the conveying fan 64 is a top plate 603, and the top plate 603 is provided with an air outlet grille to form an air outlet 602 for air outlet.

In the above structure, the dehumidification processing device has two functions of humidification and dehumidification, and the specific working process is as follows:

Dehumidification process: Please refer to Figure 8, Figure 9 and Figure 10, the air to be dehumidified enters the casing 6 through the air inlet 601, first passes through the filter assembly 610 to filter the dust and other impurities in the air, and then the filtered air passes through the air exchange From the cold air channel 5 on the heater 61 to the adsorption area 621 of the dehumidification wheel 62, the moisture absorption medium passing through the adsorption area 621 absorbs the water vapor in the air, and the water vapor undergoes a phase change at the same time, and releases latent heat. Its own moisture is reduced and latent heat is released to become dry and hot air, which is conveyed by the conveying fan 64 and discharged from the casing 6 through the air outlet 602 to obtain dehumidified air. During the dehumidification process, the dehumidification wheel 62 is in a rotating state, and the dehumidification wheel 62 is divided into an adsorption area 621 and a regeneration area 622, and the treated air to be dehumidified through the cold air duct 5 passes through the adsorption area 621 for dehumidification; The heater 63, the circulating fan 65 and the heat exchanger 61 are connected end to end to form an air duct suitable for airflow. The airflow passes through the regeneration area 622 of the dehumidification wheel 62. During the dehumidification process, the adsorption area 621 absorbs water vapor and gradually becomes saturated. , with the rotation of the dehumidification wheel 62, the saturated area rotates to the regeneration area 622, and the air heated by the heater 63 passes through the saturated area to evaporate the moisture absorbed in the area, thereby restoring the dehumidification capacity of the wheel; At the same time, the circulating air becomes hot and humid air due to absorbing the desorbed water vapor; afterward, under the action of the circulating fan 65, the hot and humid air is transported to the heat exchanger 61, and the hot and humid air inside the heat exchanger 61 is discharged in the condenser. Moisture is condensed in the channel, and the condensed water flows into the water tank 609 through the drain port 201 of the heat exchanger 61, and the hot and humid air passes through the heat exchanger 61 and becomes dry air, which is reused by the circulating fan 65, and so on.

Humidification process: Please refer to Fig. 3, Fig. 4, Fig. 8 and Fig. 9, the process air enters the casing 6 through the air inlet 601, first passes through the filter assembly 610 to filter the dust and other impurities in the air, and then enters the heat exchanger 61 During the humidification process, the water cavity 101 on the top cover 1 guides water to the surface of the heat exchange tube 4 to form a water film, and humidification is performed in the cold air duct 5 to increase atomized water vapor or carry out Evaporation of water increases the water content in the air passing through the cold air duct 5 , and then is transported by the conveying fan 64 and discharged from the casing 6 through the air outlet 602 to obtain humidified air. In the process of humidification, the air to be humidified does not need to pass through the dehumidification wheel 62, so the gas channels that do not pass through the dehumidification wheel 62 can be increased to facilitate the outflow of the air to be humidified. In the structure of this embodiment, space saving is considered factors, the humidified air can pass through the dehumidification rotor 62 without additional gas passages. When the humidification operation is performed, the heater 63 and the circulation fan 65 do not work, and the dehumidification rotor 62 does not rotate, that is, the air passes through the dehumidification rotor. The area of the wheel 62 is a fixed area, and the dehumidification operation will not be affected after the moisture absorption of the dehumidification wheel 62 reaches saturation.

In the structure of the above-mentioned adding and dehumidifying treatment device, a water tank 609 is arranged inside the casing 6 of this embodiment, and the heat exchange condensed water in the dehumidification mode and the circulating humidifying water in the humidification mode are connected to the water tank 609 through the water receiving tray 2 for recovery. , the water tank 609 communicates with the water cavity 101 on the top cover 1 through a water pump.

Specifically, as shown in FIG. 6 and FIG. 7 in conjunction with FIG. 8 , the drainage channel 213 on the first body 21 of the water receiving tray 2 communicates with the water tank 609, and the drain port 201 of the second body 22 of the water receiving tray 2 also Connected to the water tank 609, during the dehumidification process, the heat exchange condensed water generated in the heat exchange condensation process in the heat exchanger 61 is finally discharged into the water tank 609 through the drain port 201. The water used to form the wet curtain flowing down from the water chamber 101 finally flows into the water receiving tank 212 on the first tray body 21, and is discharged into the water tank 609 through the drainage channel 213 on the water receiving tank 212, and the water tank 609 is connected to the water on the top cover 1 through a water pump. Cavity 101, when humidification is required, the water pump is used to pump water into the water chamber 101 to perform humidification, forming the recycling of water in the process of humidification and dehumidification.

Since the humidification and dehumidification treatment device includes two modes: humidification mode and dehumidification mode, in the humidification mode, water is needed for humidification, and in the dehumidification mode, it is a completely dry environment. Therefore, when switching between humidification and dehumidification modes, it is necessary to The water flow is strictly controlled, and the control of the water flow depends on the water tank 609 and the water pump. Specifically, when the water in the water chamber 101 flows down from the edge of the water chamber 101 to form a water curtain for humidification, the water in the top cover 1 can be The cavity 101 is set as a water guide surface structure with a high center and low surroundings. After the water pumped from the water tank 609 enters the water cavity 101, it does not stay in the water cavity 101, but flows out directly from the edge along the terrain, and flows out between the top cover 1 and the water receiving area. A water curtain is formed between the trays 2; when the water in the water chamber 101 flows downward from the cold air duct 5 and is diverted to the outer wall of the heat exchange tube 4 through the guide rib 1021 to form a wet curtain for humidification, the water chamber of the top cover 1 can In 101, the cold air outlet 501 of the cold air duct 5 is set as the lowest point of the water chamber 101, and the water pumped from the water tank 609 by the water pump enters the water chamber 101, and flows directly to the cold air outlet 501 along the terrain, and then passes through the guide ribs. Under the action of 1021 diversion, it flows downward to the outer wall of the heat exchange tube 4 to form a wet curtain. No matter which method is used for humidification, the water will not stay in the water chamber 101 for too long, and will flow downwards, and finally be classified into the water receiving tray 2, and then be discharged into the water tank 609 from the water receiving tray 2, and switch from the humidification mode to the dehumidification mode In this mode, the inside of the device is always in a dry state, which is convenient for the smooth operation of dehumidification.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (17)

1. A heat exchanger incorporating a dehumidification processing apparatus, the heat exchanger comprising;

the water receiving device comprises a top cover and a water receiving disc, wherein the top cover and the water receiving disc are both provided with air guide cavities, and the water receiving disc is provided with a water outlet;

the heat exchange tube is arranged between the top cover and the water receiving disc, the heat exchange tube is communicated with the outside through the air guide cavity, a cold air duct is formed in a space outside the tube wall of the heat exchange tube, and air in the cold air duct is suitable for heat exchange with air in the heat exchange tube in a dehumidification mode of the air treatment equipment;

the top cover is provided with a water cavity, and water in the water cavity is suitable for humidifying air in the cold air duct in a humidifying mode of the air treatment equipment.

2. The heat exchanger for a desiccant treatment device according to claim 1, wherein the top cover has an area smaller than the area of the water pan, and wherein the orthographic projection of the top cover on the water pan is positioned in the water pan, and wherein in a humidification mode of the air treatment apparatus, water in the water chamber flows through the edge of the water chamber to fall into the water pan and forms the wet curtain between the top cover and the water pan.

3. The heat exchanger of a plus dehumidification process unit of claim 1, wherein a flow guide member is further provided on the top cover, the flow guide member adapted to guide water in the water chamber to the heat exchange tube outer surface in a humidification mode of the air treatment device to form the wet curtain in the cool air duct at the heat exchange tube outer surface.

4. A heat exchanger for a dehumidifying apparatus as claimed in claim 3, wherein the water chamber is formed on the upper surface of the top cover, the top cover is provided with a cool air outlet of the cool air duct, the edge of the cool air outlet protrudes toward the water chamber to form a shroud, and the shroud is provided with a gap communicating with the water chamber.

5. The heat exchanger of claim 4, wherein the flow guide member includes a flow guide rib passing through the notch and the cool air outlet, and the flow guide rib extends from the water chamber toward a surface of the heat exchange tube.

6. The heat exchanger with dehumidification processing apparatus as set forth in claim 4, wherein the top cover is a circular cover, the cool air outlet comprises arc-shaped air outlets distributed around a central axis of the top cover, and the air outlets are connected with a plurality of the guide ribs.

7. The heat exchanger with the dehumidification processing apparatus according to claim 4, wherein the top cover bottom is provided with a first mounting opening for assembling the first end of the heat exchange tube, and the first mounting opening and the cold air outlet are arranged in a staggered manner;

and/or the number of the groups of groups,

the cold air outlet and the heat exchange tube comprise multiple layers, the cold air outlet and the heat exchange tube are alternately distributed along the radial direction of the top cover, and under the humidification mode of the air treatment equipment, water in the water cavity flows through the wall of the heat exchange tube through the cold air outlet and flows to the water receiving disc to form multiple layers of wet curtains.

8. A heat exchanger for a heating and dehumidifying device as claimed in claim 3, wherein the top cover is provided with a hot air inlet and a hot air outlet, the air guide cavity comprises an air inlet cavity, an air outlet cavity and a transition cavity, the air inlet cavity and the air outlet cavity are arranged on the top cover, the transition cavity is arranged on the water receiving tray, the heat exchange tube comprises an air inlet tube and an air outlet tube, a first end of the air inlet tube is communicated with the air inlet cavity, a first end of the air outlet tube is communicated with the air outlet cavity, and a second end of the air inlet tube and a second end of the air outlet tube are communicated through the transition cavity.

9. The heat exchanger of the dehumidification processing apparatus according to claim 8, wherein the air intake chamber comprises a plurality of air intake passages communicated with the hot air inlet, the plurality of air intake passages are arranged in parallel, and each air intake passage is correspondingly communicated with a plurality of air intake pipes; the air outlet cavity comprises a plurality of air outlet channels communicated with the hot air outlet, the air outlet channels are arranged in parallel, and each air outlet channel is correspondingly communicated with a plurality of air outlet pipes; the air inlet channels and the air outlet channels are alternately distributed with the air outlet holes.

10. The heat exchanger with dehumidification processing apparatus according to claim 1, wherein the heat exchange tubes are distributed in an array, and a space between the walls of the outermost adjacent heat exchange tubes forms a cold air inlet of the cold air duct.

11. A heat exchanger for a dehumidifying device as claimed in any one of claims 1 to 10 wherein the top cover comprises first and second cooperating covers; the second cover body is provided with a first mounting opening for assembling the first end of the heat exchange tube, and a part of the air guide cavity is formed between the first cover body and the second cover body.

12. The heat exchanger for a desiccant treatment device according to claim 11, wherein the first cover forms the water chamber, and the first cover is provided with a water injection passage communicating with the water chamber.

13. A heat exchanger for a heating and dehumidifying device as claimed in any one of claims 1 to 10 wherein the water receiving tray comprises first and second trays which are mutually engaged, a portion of the air guide chamber being formed between the first and second trays, the first tray being provided with a second mounting opening for mounting the second end of the heat exchange tube.

14. The heat exchanger with the dehumidification processing apparatus according to claim 13, wherein the first tray forms a water receiving tank and a drain passage communicating with the water receiving tank; the second tray body is provided with the water outlet.

15. The utility model provides a add dehumidification processing apparatus, includes the casing, its characterized in that, air intake and air outlet have been seted up to the casing, install in the casing:

the heat exchanger of any one of claims 1 to 14;

the dehumidifying rotating wheel comprises an adsorption zone and a regeneration zone;

the heater is positioned at one side of the dehumidifying rotating wheel, which is away from the heat exchanger; adapted to heat the gas stream flowing through the heater and then flow it to the regeneration zone;

The conveying fan is suitable for conveying air flow from the air inlet to the cold air duct flowing through the heat exchanger, and then conveying the air flow to the adsorption zone of the dehumidifying rotating wheel and then flowing out from the air outlet;

and the circulating fan is suitable for conveying the airflow flowing through the regeneration zone to flow to the circulating fan after flowing through the heat exchange tube of the heat exchanger.

16. The dehumidification processing apparatus according to claim 15, wherein the dehumidification processing apparatus includes a dehumidification mode and a humidification mode;

in the dehumidification mode, the air flow of the conveying fan passes through the dehumidification rotating wheel, the heater and the circulating fan work, and the dehumidification rotating wheel is subjected to regeneration treatment;

in the humidification mode, the heater and the circulating fan do not work, and the air flow of the conveying fan is humidified when flowing through the cold air duct of the heat exchanger.

17. The humidification and dehumidification device as claimed in claim 16, wherein a water tank is further provided in the housing, and the heat exchange condensed water in the dehumidification mode and the circulating humidification water in the humidification mode are both recovered by being communicated to the water tank through the water receiving tray, and the water tank is communicated with the water cavity on the top cover through a water pump.